RIO DE JANEIRO, BRAZIL - MAY 12: Artists from the Cia Base circus group perform in the show Futebol Voador (Flying Soccer) during the International Circus Festival in the Vila Cruzeiro slum, or favela, on May 12, 2014 in Rio de Janeiro, Brazil. The International Circus Festival runs until May 18 in Rio and the 2014 FIFA World Cup begins June 12. (Photo by Mario Tama/Getty Images) ***BESTPIX***

WASHINGTON, DC - MAY 12: Members of the U.S. Army Old Guard Fife and Drum Corps march pass in front of the Washington Monument during a reopening ceremony for the monument May 12, 2014 in Washington, DC. The Washington Monument was reopened after it has been closed for a restoration due to the damages caused by a 5.8-magnitude earthquake that struck the Washington, DC, area on August 23, 2011. (Photo by Alex Wong/Getty Images)

Photo: Alex Wong, Getty Images

WASHINGTON, DC - MAY 12: Members of the U.S. Army Old Guard Fife...

WASHINGTON, DC - MAY 12: Members of the U.S. Army Old Guard Fife... Photo-6294747.85637 - SFGate

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Worshippers pray during a candle light vigil at the Our Lady of Fatima shrine, in Fatima, Portugal, Monday, May 12, 2014. Every year on May 12 and 13 thousands of Catholic pilgrims arrive to Fatima Sanctuary to attend Masses and pray in honor of the Virgin Mary, where it is believed she was witnessed by three shepherd children in 1917. (AP Photo/Francisco Seco)

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***GRAPHIC CONTENT***
A victim lays on the grass after having allegedly been shot by pro-Kiev militants near Krasnoarmeysk's city hall, eastern Ukraine, on May 11, 2014. Isolated violence flared in some towns as rebels in east Ukraine claimed landslide vote for independence. A freelance photographer working for AFP saw a gunman in a group of pro-Kiev militants fire into a crowd of pro-Russian activists in the town of Krasnoarmiysk, badly wounding at least two. AFP PHOTO / FABIO BUCCIARELLIFABIO BUCCIARELLI/AFP/Getty Images

YOUNTVILLE, CA - MAY 12: A California Departent of Corrections inmate fire crew from Delta Conservation Camp pulls on a branch while working with Cal Fire to remove ground fuels and small trees along a road to help reduce the spread of fire in the event of a wildfire on May 12, 2014 in Yountville, California. As drought conditions continue throughout California, Cal Fire announced the start of fire season in counties north of the San Francisco Bay Area, a week after the San Francisco Bay Area and Sacramento. Fire officials are performing home inspections and asking homeowners to leave at least 100 feet of defensible space around their houses. Since the beginning of the year, Cal Fire has responded to nearly 1,300 wildfires, twice as many as a typical year during the same period. (Photo by Justin Sullivan/Getty Images)

A woman walks past a burning shop in the Maskuf market in the Old City of Homs, some 162 kilometres north of the capital Damascus, on May 12, 2014. Syrians streamed back into the ruins of the Old City of Homs on May 10, picking through the remains of their homes and trying to come to terms with the destruction after rebel forces in the Old City were besieged for nearly two years before the deal to evacuate, and regime troops shelled the area almost daily throughout. The influx came a day after the last rebel holdouts left the area under an evacuation deal that handed the Old City back to the government, granting it a symbolic victory. TOPSHOTS/AFP PHOTO/JOSEPH EIDJOSEPH EID/AFP/Getty Images

Photo: Joseph Eid, AFP/Getty Images

A woman walks past a burning shop in the Maskuf market in the Old...

A woman walks past a burning shop in the Maskuf market in the Old... Photo-6294729.85637 - SFGate

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In this frame grab from television helicopter video, a home bursts into flames in Brentwood, N.H., Monday May 12, 2014. Shots were fired just before the fire, which involved a police officer, according to the New Hampshire State Police. (AP Photo/WHDH-TV 7) TV OUT

Photo: Associated Press

In this frame grab from television helicopter video, a home bursts...

In this frame grab from television helicopter video, a home bursts... Photo-6294740.85637 - SFGate

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A street dog walks on the banks of the river Ganges at sunset in Varanasi on May 12, 2014. The Ganges is considered the holiest of rivers for hindus and it is revered as a godess itself despite it being considered one of the most polluted rivers in the world. TOPSHOTS/AFP PHOTO/ROBERTO SCHMIDTROBERTO SCHMIDT/AFP/Getty Images

Photo: Roberto Schmidt, AFP/Getty Images

A street dog walks on the banks of the river Ganges at sunset in...

A street dog walks on the banks of the river Ganges at sunset in... Photo-6294741.85637 - SFGate

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Brandon Armstrong, left, and Thomas Etheridge, both of Alexander, kiss and embrace after they were wed in the rotunda of the Pulaski County Courthouse in Little Rock, Ark. Monday May 12, 2014. (AP Photo/The Arkansas Democrat-Gazette, Stephen B. Thornton)

New York Mayor Bill de Blasio, center left, visits with students in a fourth grade art class at P.S.69 in the Queens borough of New York Monday, May, 12, 2014. He is joined by Assemblyman Francisco Moya, center, and City Councilman Daniel Dromm, right. (AP Photo/Bryan Smith)

VARANASI, INDIA - MAY 12: Indian women wait in line to vote at a polling station on May 12, 2014 in Varanasi, India. Indians voted in the ninth and final phase of elections Monday. Counting will be on May 16. (Photo by Kevin Frayer/Getty Images) *** BESTPIX ***

Photo: Kevin Frayer, Getty Images

VARANASI, INDIA - MAY 12: Indian women wait in line to vote at a...

VARANASI, INDIA - MAY 12: Indian women wait in line to vote at a... Photo-6294742.85637 - SFGate

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A man cries during the funeral of Alexey Vorobyov, a civilian killed by Ukraine National Guard during an operation against pro Russian activist last Friday in Mariupol, Ukraine, Monday, May 12, 2014. Pro-Russia insurgents in eastern Ukraine declared independence Monday, a day after holding a hastily arranged referendum vote on separatism that Ukraine's government and its western allies said violated international law. (AP Photo/Manu Brabo)

Photo: Manu Brabo, Associated Press

A man cries during the funeral of Alexey Vorobyov, a civilian...

A man cries during the funeral of Alexey Vorobyov, a civilian... Photo-6294745.85637 - SFGate

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The hat of former US Air Force veteran Johnny Macia is pictured during a wreath laying ceremony on May 12, 2014, at the Berlin Airlift memorial outside Tempelhof airport in Berlin, commemorating the airlift during the Cold War Berlin blockade. Allied and German military officials, along with veterans of the airlift, commemorated the 65th anniversary of the end of the airlift which US and allied aircraft flew in 4.000 tons of food and supplies daily for the population of west Berlin for almost a year in Berlin. TOPSHOTS/AFP PHOTO / JOHANNES EISELEJOHANNES EISELE/AFP/Getty Images

Photo: Johannes Eisele, AFP/Getty Images

The hat of former US Air Force veteran Johnny Macia is pictured...

The hat of former US Air Force veteran Johnny Macia is pictured... Photo-6294711.85637 - SFGate

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Team SKY's Bradley Wiggins crosses the finish line to win Stage 2 of the Amgen Tour of California on Monday, May 12, 2014 in Folsom, Calif. (Paul Kitagaki Jr./Sacramento Bee/MCT)

Photo: Paul Kitagaki Jr., McClatchy-Tribune News Service

Team SKY's Bradley Wiggins crosses the finish line to win Stage 2...

Team SKY's Bradley Wiggins crosses the finish line to win... Photo-6294247.85637 - SFGate

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Tracy Blum of Roseville swims with her quarter horse, Gambler as they cool off in Folsom Lake on Monday, May 12, 2014, in Folsom, Calif. Temperature in the Sacramento region is expected to hit triple digits this week. (Jose Luis Villegas/Sacramento Bee/MCT)

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A child looks on as Indian Muslim women wait in line to cast their votes at a polling station in Azamgarh, about 275 kms from Lucknow in northern Uttar Pradesh state on May 12, 2014. Voters headed to the polls in the final stage of India's bitterly fought mammoth election that is expected to catapult Hindu nationalist hardliner Narendra Modi to power. AFP PHOTO/SANJAY KANOJIASanjay Kanojia/AFP/Getty Images

Photo: Sanjay Kanojia, AFP/Getty Images

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A child looks on as Indian Muslim women wait in line to...

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A child looks on as Indian Muslim women wait in line to... Photo-6294730.85637 - SFGate

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Workers set up a giant official poster of the 67th Cannes Film Festival, featuring Italian actor Marcello Mastroianni on May 12, 2014 on the facade of the Palais des festivals in Cannes, southeastern France. Cannes, one of the world's top film festivals, opens on May 14 and will climax on May 25 with awards selected by a jury headed this year by New Zealand's film director Jane Campion. AFP PHOTO / VALERY HACHEVALERY HACHE/AFP/Getty Images

Photo: Valery Hache, AFP/Getty Images

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Workers set up a giant official poster of the 67th Cannes...

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Workers set up a giant official poster of the 67th Cannes... Photo-6294710.85637 - SFGate

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EDS NOTE - SPANISH LAW REQUIRES THAT THE FACES OF MINORS ARE MASKED IN PUBLICATIONS WITHIN SPAIN - In this photo taken on Sunday, May 11, 2014, a 'Maya' girl sits on an altar during the traditional celebration of 'Las Mayas' on a street, in central Madrid, Spain. The festival originates from pagan traditions and dates back to the medieval age, taking place annually at the beginning of May to celebrate the beginning of spring. A girl aged between 7 and 11 is chosen as 'Maya' and is required to sit still, serious, and quiet for a couple of hours on an altar on the street decorated with flowers and plants. They then attend church with their family to attend a ceremony. (AP Photo/Daniel Ochoa de Olza)

Photo: Daniel Ochoa De Olza, Associated Press

EDS NOTE - SPANISH LAW REQUIRES THAT THE FACES OF MINORS ARE MASKED...

EDS NOTE - SPANISH LAW REQUIRES THAT THE FACES OF MINORS ARE MASKED... Photo-6294718.85637 - SFGate

A couple kiss, at the ancient site of Hadrian Library in Athens on Monday, May 12, 2014. Tourism is a major earner in debt-mired Greece, and industry officials say arrivals in the first four months of 2014 are 36.1 percent up compared to a year earlier according to Association of Greek Tourism Enterprises. (AP Photo/Thanassis Stavrakis)

Photo: Thanassis Stavrakis, Associated Press

A couple kiss, at the ancient site of Hadrian Library in Athens on...

A couple kiss, at the ancient site of Hadrian Library in Athens on... Photo-6294721.85637 - SFGate

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Ging Callejo keeps a careful eye on Emily Callejo, age 4, as she cools of at Onota Lake in Pittsfield, Mass., Monday May 12, 2014. Temperatures reached the 80s in New England. (AP Photo /The Berkshire Eagle, Ben Garver)

A woman displays the indelible ink mark on her finger after casting her vote at a polling station in Kunwarpur village, about 40 kilometers (25 miles) northwest of Jaunpur district, in the northern Indian state of Uttar Pradesh, India, Monday, May 12, 2014. Millions of Indian voters wrapped up a mammoth national election Monday, braving the searing sun on the final day of polling with the Hindu nationalist opposition candidate seen as the front-runner for prime minister. With 814 million eligible voters, India has been voting in phases over six weeks, with results expected on Friday. (AP Photo/Rajesh Kumar Singh)

Photo: Rajesh Kumar Singh, Associated Press

A woman displays the indelible ink mark on her finger after casting...

A woman displays the indelible ink mark on her finger after casting... Photo-6294725.85637 - SFGate

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This picture taken on May 11, 2014 shows pedestrians wading through a heavily flooded street in Shenzhen, south China's Guangdong province. Meteorological authorities issued a red alert as the biggest storm ever since 2008 hit Shenzhen, flooded several districts and submerged more than 2000 vehicles, state media reported. CHINA OUT AFP PHOTOSTR/AFP/Getty Images

Photo: Str, AFP/Getty Images

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This picture taken on May 11, 2014 shows pedestrians...

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This picture taken on May 11, 2014 shows pedestrians... Photo-6294728.85637 - SFGate

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A kite flys past a couple on Crown Memorial Beach Monday, May 12, 2014, in Alameda, Calif. After a hot, windy Mother's Day with temperatures in the mid-80s, a high pressure system was expected to heighten the heat slightly Monday before pushing it to near triple digits in some spots midweek, mostly inland areas already badly parched by drought. High temperatures will extend up and down California, according to the National Weather Service. (AP Photo/Ben Margot)

A hummingbird perches on a branch covered in fresh snow from a spring snowstorm, at Eldorado Canyon State Park, in Eldorado Springs, Colo., on Monday, May 12, 2014. A spring storm has brought up to 3 feet of snow to the Rockies and severe thunderstorms and tornadoes to the Midwest. In Colorado, the snow that began falling on Mother's Day caused some power outages as it weighed down newly greening trees. (AP Photo/Brennan Linsley)

Photo: Brennan Linsley, Associated Press

A hummingbird perches on a branch covered in fresh snow from a...

A hummingbird perches on a branch covered in fresh snow from a... Photo-6294733.85637 - SFGate

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Miles McBath, 21, of Carnesville, Georgia, a student at Emmanuel College, saw the information about the 15oth Anniversary of the Battle of New Market on Facebook. As a reenactor, he decided to join the march. He rests under the shade of a tree on a hillside beside a BB&T bank building with the group, along Route 11 between Steele's Tavern and Greenville, Va., Monday, May 12, 2014. (AP Photo/The Roanoke Times, Stephanie Klein-Davis)

Photo: Stephanie Klein-Davis, Associated Press

Miles McBath, 21, of Carnesville, Georgia, a student at Emmanuel...

Miles McBath, 21, of Carnesville, Georgia, a student at Emmanuel... Photo-6294732.85637 - SFGate

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A biker passes fresh snow from the fringe of a major spring snowstorm in the nearby mountains, in Superior, Colo., on Monday, May 12, 2014. A spring storm has brought up to 3 feet of snow to the Rockies and severe thunderstorms and tornadoes to the Midwest. In Colorado, the snow that began falling on Mother's Day caused some power outages as it weighed down newly greening trees. (AP Photo/Brennan Linsley)

Photo: Brennan Linsley, Associated Press

A biker passes fresh snow from the fringe of a major spring...

A biker passes fresh snow from the fringe of a major spring... Photo-6294734.85637 - SFGate